Friction stir welding of Inconel alloy 600
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Nickel-based superalloys have been developed to increase the energy efficiency, performance and to reduce the cost of industrial turbine engines and the other high temperature components. To manufacture a modern, flexible and high performance turbine system, joining or welding processes including gas tungsten arc welding (GTAW), electron beam welding (EBW), laser welding or friction stir welding (FSW) are generally required . FSW, which was invented in 1991 by The Welding Institute (TWI), Cambridge, England , is a solid-state joining process. Since FSW involves no melting, this process eliminates the problems associated with fusion welding such as fumes, arc glare, spatter, solidification cracking, shrinkage, severe distortion and solidification stress. It also provides a significant economic advantage in terms of savings in the weld preparation time, welding time, consumable costs and labor rate for veteran technicians [3, 4, 5]. Over the past 15 years, it has been proven to be...
KeywordsFriction Stir Welding Welding Speed Laser Welding Friction Stir Welding Tool Rotation Speed
This research was supported by Grant-in-Aid for Science Research (A and B) from Japan Society for the Promotion of Science (Grant No.17206074 and 17360354), and by a Grant-in-Aid for the Cooperative Research Project of Nationwide Joint-Use Research Institutes on Development Base of Joining Technology for New Metallic Glasses and Inorganic Materials from the Ministry of Education, Science, Sports and Culture. Financial support from Toray Science Foundation is also acknowledged.
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